20163597260

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1980707}}^1$

素因数の和:1981225

約数の個数: 24

約数和(自身を含む): 42426765360

約数和(自身を除く): 22263168100

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 10180, 1980707, 3961414, 7922828, 9903535, 19807070, 39614140, 1008179863, 2016359726, 4032719452, 5040899315, 10081798630, 20163597260]

約数ペア:

[(1, 20163597260), (2, 10081798630), (4, 5040899315), (5, 4032719452), (10, 2016359726), (20, 1008179863), (509, 39614140), (1018, 19807070), (2036, 9903535), (2545, 7922828), (5090, 3961414), (10180, 1980707)]